In fact, it didn't take long for AT&T to rain on Verizon's parade, quickly pointing out that it too will offer the device (eventually), and even rolling out a page where users can sign up to be alerted when it becomes available. But will AT&T and Verizon be the only two carriers to offer it?

Shortly before AT&T crashed Verizon's party, HTC Americas president Jason Mackenzie told The Next Web: "Verizon is our exclusive launch partner, but our goal is to ultimately extend this product to even more customers later this year." His comments may have been referring solely to AT&T, but it does leave the door open for more US carriers to offer the device in the coming months.

Neowin understands from sources at one of the UK's leading independent phone retailers that the HTC One M8 for Windows will be available there in Q4, although it is not yet clear if the device will be launched internationally in other markets before then. The handset passed through international GSM certification earlier this month.